>>1705815The way it's meant to work is that you need to get Cycle2Work as a benefit. How this works at your employer will depend - it might be core, it might be a salary sacrifice thing.
Once you have your C2W details from your employer, you need to go to a retailer who is a part of the C2W scheme. By and large, almost everyone points you to Halfords.
The way you "pay" for it, is that your employer has to give you a Letter of Collection, between the values of £250 and £2000, increasing in £50 increments.
You must, however use the bike for commuting to and from work, and 50% of its use must be dedicated to that.
So, say your workplace is 5 miles away. And you're going there all 5 days of the week.
That means in a month you're doing ~200 miles of commuting. As a consequence, you must not exceed 200 miles of distance for not cycling to and from work. If you suddenly stop using the bike, or your non-commuting mileage exceeds your commuting mileage, you cease being eligible, and your employer has a responsibility to take the bike away.
Bicycles, tricycles and quadricycles are all valid, and e-bikes are also valid (but there's likely the 250W output limit). You're also allowed to get cycle helmets, bells, mirrors, mudguards, cycle clips, panniers, luggage carriers, locks, pumps, puncture repair kits, took kits, tyre sealant and reflective clothing.